The diagram below depicts an RC-circuit where C = 3.20 micro F, R 1 = 24.0 ohms,

Question

The diagram below depicts an RC-circuit where C = 3.20 micro F, R1 = 24.0 ohms, R2 = 14.5 ohms, and Vo = 32.4 V. what is the current through R1 immediately after the switch S is closed?

What is the current through R2 immediately after the switch S is closed?

What is the current charging the plates of the capacitor immediately after the switch S is closed?

What is the current through R1 after the switch S has been closed for a very long time? Assume that the battery does not go dead.

What is the current through R2 after the switch S has been closed for a very long time? Assume that the battery does not go dead.

Explanation / Answer

Immediately after switch is cloed ,capacitor acts as short circuit i.e simple wire

a)

I1=Vo/R1=32.4/24

I1=1.35 A

b)

I2=0 A

c)

I=I1=1.35 A

d)

After long time capacitor acts as open circuit ,so total current flowing in the circuit is

I=Vo/(R1+R2) =32.4/(24+14.5)

I=0.84 A

Current through R1 is

I1=I=0.84 A

e)

Current through R2 is

I2=I=0.84 A

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects